France will remain an ally of the United States but President François Hollande says the world is now "uncertain".
Reacting to Trump's shock victory in the US election race Hollande said the result "now opens a period of uncertainty".
The president congratulated Trump: "which is natural between two heads of state".
In a televised address, he also said that "this context calls for a united Europe, capable of making
itself heard and of promoting policies wherever its interests or its values are challenged."
Hollande had been late to react on Wednesday but previously had this to say about Trump: "His excesses make you want to retch, even in the United States."